Daewoo CP21S7 Series, Service Manual, Page: 23 / 39

CP-202S Service Manual
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LA78040 is a vertical deflection output IC for high image quality TV and CRT displays that
supports the use of a bus control system signal-processing IC. The sawtooth waveform from
the bus control system signal-processing IC can directly drive the deflection yoke (including the
DC component). Color TV vertical deflection system adjustment functions can be controlled
over a bus system by connecting the LA78040 to a Sanyo LA768X series.
Since the LA78040 provides a MAX deflection current of 1.8Ap-p, it is optimal for small and
medium size CRTs.
4.3.1 LA78040
Features:
· Built in pump-up circuit for low power dissipation.
· Vertical output circuit
· Thermal protection circuit
· Pinning and Block diagram
4.4 24WC16 - 16 KB EEPROM